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seilnacht.com screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

seilnacht.com

SEILNACHT - Naturwissenschaften unterrichten

Page Load Speed

3.1 sec in total

First Response

769 ms

Resources Loaded

1.4 sec

Page Rendered

877 ms

seilnacht.com screenshot

About Website

Click here to check amazing SEILNACHT content for Germany. Otherwise, check out these important facts you probably never knew about seilnacht.com

Naturwissenschaften verstehen - Unterricht vorbereiten und kreativ gestalten

Visit seilnacht.com

Key Findings

We analyzed Seilnacht.com page load time and found that the first response time was 769 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

seilnacht.com performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

97/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.5 s

100/100

10%

Network Requests Diagram

seilnacht.com

769 ms

desshop3.gif

649 ms

des12a.JPG

393 ms

des03c.JPG

397 ms

des01b.JPG

388 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Seilnacht.com and no external sources were called. The less responsive or slowest element that took the longest time to load (801 ms) belongs to the original domain Seilnacht.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 15.2 kB (15%)

Content Size

102.7 kB

After Optimization

87.5 kB

  • HTML
  • Images

In fact, the total size of Seilnacht.com main page is 102.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 5% of websites need less resources to load. Images take 93.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 7.9 kB

  • Original 9.8 kB
  • After minification 8.1 kB
  • After compression 1.8 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 1.6 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 7.9 kB or 81% of the original size.

Image Optimization

-8%

Potential reduce by 7.3 kB

  • Original 93.0 kB
  • After minification 85.7 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. SEILNACHT images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

  • Images

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SEILNACHT. According to our analytics all requests are already optimized.

Network Requests Diagram

seilnacht.com

seilnacht.com

769 ms

desshop3.gif

desshop3.gif

649 ms

des12a.JPG

des12a.JPG

393 ms

des03c.JPG

des03c.JPG

397 ms

des01b.JPG

des01b.JPG

388 ms

des02b.JPG

des02b.JPG

260 ms

deslabm.JPG

deslabm.JPG

390 ms

des05a.JPG

des05a.JPG

391 ms

des04c.JPG

des04c.JPG

406 ms

des13b.JPG

des13b.JPG

411 ms

des15a.JPG

des15a.JPG

517 ms

desklett.JPG

desklett.JPG

523 ms

des09a.JPG

des09a.JPG

523 ms

des11a.JPG

des11a.JPG

542 ms

des08e.JPG

des08e.JPG

547 ms

des10b.JPG

des10b.JPG

655 ms

dvds.JPG

dvds.JPG

801 ms

flogo.jpg

flogo.jpg

667 ms

Accessibility Review

seilnacht.com accessibility score

78

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Best Practices

seilnacht.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

seilnacht.com SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Seilnacht.com can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Seilnacht.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

seilnacht.com

Open Graph description is not detected on the main page of SEILNACHT. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: